Final answer:
The combination of smoke and fog creates smog. Stephen Hawking continued to write prolifically despite his physical disabilities.
Step-by-step explanation:
The subject of this question is English and the grade level is High School.
When combining the words 'smoke' and 'fog', the result is a phenomenon called 'smog'. Smog is a type of air pollution that occurs when pollutants such as smoke and fog combine in the atmosphere. This can happen in urban areas with high levels of pollution from vehicles, factories, and other sources.
Stephen Hawking, who is known for his work in physics and cosmology, continued to write at a prolific rate despite his physical disabilities. He has written numerous books and scientific papers throughout his career.
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